Ventilating exhaust apparatus



July 24, 1951 c. B. SCHNEIBLE VENTILATING EXHAUST APPARATUS 'Filed ma 8, 1.94s

2 Sheets-Sheet l y 2 1951 c. B. SCHNEXBLE 2,562,130

VENTILATING EXHAUST APPARATUS Filed May 8, 1948 2 Sheets-Sheet 2 i i mm 28 Patented July 24, 1951 l UNITE-D "2,582,130 VENTILATI-NG 'EXHAIIST 'lirrriitii'i tis Claude BL Schhcilile; Detroi'hMich. Application May- 8, mi -sensible. 25,827

1 This invention relates to ventilating exhaust apparatus. The structure is particularly useful in' the treatment of fumes, smoke, particle-laden gas,- chemical vapors, etc. By the term gas,

employed hereinjI mean not only incondens'ible gaseous materials but condensible vapors, etc.

An object of the invention is to-provide compactapparatus providing chambers for exhaust gases and for the discharge of gases in forming curtains about the inlet to the exhaust chainber. Yet another object is to provide a cornpact housing structure Occupying relatively small space and providing chambers therein for effectively receiving the exhaust gases while at the same time providing an elongated discharge port through which gases may be discharged for the forming of a curtain or blanket around the source-of the gaseous material passing into 'the'xhaust chamber. A- still further object is to provide unit housing structures which may as combined to form ventilating exhaust structures of an adequate capacity for the room or area to be'treated. A still further object is to provide an exhaust and ventilatingunit o f's'ubfstant'ially' rectangular shape together with a partition Wall within the rectangular housing dividing the area therein into chambers forthe efiective handling ofexhaust gaseous material and for-the discharge of air or other gas to form a blanket about a source of contaminating" gaseous material. Other specific objects and ad'- vantages will appear as the specification proce'eds. I ifl'ie invention is illustrated, in a single embodiment,- by the accompanying drawings; in 'which l is a broken top plan view of apparatus embodying my invention; Fig. as broken front viewin elevation of the structure shown-in Fig. 1; Fig. 3, an end view; Fig. 4, a broken sectionaldetail view on an enlarged scale, the section being taken as indicated at line- 4 of Fig. 2 and Fig.5, a sectional view similar to Fig.' 4, the section being takenas indicated at line 5 i Fig. 2.

the illustration given, [0 designates standards: which may be secured to-the floor by-rai ls -I [and which support alouver casing 12.

;Extendingabove the rectangularlouver casing I2 is the chamber casing l3 which is substantially rectangular in shape and which communicatesat its lower end with the louver casing l2. A-partition wall I4 extends-obliquely across the interior creasing l3- and has'anend portion I-5- dividing the: area within the louver casing 12' into two 7 Claims: (ems-415i parallel outlet portions. One outlet portion I6 is relatively narrow in width but extends the length of the louver casing. In the narrow outlet opening l6 are mounted the louvers ll which are preferabl or'tnetesr-dro dress-sectional design ill strated so as tdfac'ilitate the air flow through thearea is through vnturmike assages. By means of the louvers, the streamer air discharged downwardly through the passage [6 is divided iiit'o three streams so that the central-stream is smeared againstfrlctidfi and is rojected a greater distance than the "other streams in forming a biaiiketor'air eurtaiii.

The iouvereasing i2 divided by the partition 'WallI'EalSointOa relatively iargei inlet ortion It in which are mounted louvers 19 extending substantially at right angles to the louvers I1. The louvers maybe of any desired cross-sectional shapebut' it'is preferred toemploy the rounded or "elliptical structures which provide Venturi-like passages". I

The partition H is inclined obliquely, as shown more clearly iii Figs. 1', land 51, the" upper ends of the artition-wail extending generally toward opposite corners of the top of the casin l3. By this means, there is provided an'enla'rg'ement at each end of the casing. For example, thechambe'r 20 which communicates with the exhaust louvers 19 "hasan enlargedporti'on'at the left-hand side of tneeasing l3 and provided withan exhaust opening" 2 l Similarly, the" passage 16 communicates with an el'il'aiged chaniber22 which becomes relas'ivelywide at the 'ri'giit hand side of the casing and is thereprovided with an enlarged inlet openmg 23', as s'liowi'i iri'oie' clearly in Figs. 1 and 5. By the divisio'n'ef'the tenor of easing l3 in this manner, there are formed atopposit'e ends of the casing enlargements of receiving the inlet and outlet. openings designated whileatthe same time the. partition wall serves asan effective means for directing. triefiui'd-in the desired direction toward the exhaust opening and inwardly from the inlet opening toward. the narrow discharge port It.

- Gommunicating-with theexhaust port 2| is a conduit. Theconduitfl communicates with a fan-casing- 25 inwhichis mounted a fan 26.

Also communicating-with thefan casing 25 is a laterally extendingconduit?! which is adapted tocommunicatewith a similar casing [3a positioned alongside the unit shown. if no additional unit'is employem the conduit i1 will be closed by a-damper-or closure caper;- ifdesired, it may removed -The-inlet-portfl at opposite ended the easine'com nunicates; with-acenduit 28- leading to :a

fan casing 29 in which is mounted a fan 30. A conduit 3| leads from the fan to a source of air or other gas. In the specific illustration given, the fan casing 29 communicates with another conduit 32 adapted to lead into another unit casing [312 arranged alongside of the casing illustrated. If no additional casing i 3b is employed, the conduit 32 may be closed by a damper or closure cap, etc. Instead of employing thestructures illustrated for connecting units, a single conduit 2 l-may be employed which communicates with a single fan casing 25 while similarly a single conduit 28 may a be employed which will communicate, with the fan casing 29.

The fan casing 29 communicates on its outlet side with a conduit 3| which may lead to the exterior of the building or room or to another treating device such as, a separator, or the conduit may communicate through a connection with the pipe 3! to permitreuse or partialreuseof the exhaust gases.

' Operation.

In the operation of the apparatus, a casting or other source of gaseous fumes, smoke, par.- ticulate matter, etc. may be'conveyed or placed between the standards Ill below casing l2. Air or other gas is-forced by blower 30 downwardly through the conduit 28 into the chamber 22" and thence is discharged through the elongated port I 6 to provide a curtain extending downwardly along one side of the source of the, gaseous material. The curtain prevents the escape of fumes, smoke, etc. in the room and tends to confine the fumes, about the exhaust intake IS. The rising column of gas from the casting or other source passes upwardly through the louvers I9 and into the chamber 20 under the influence of the suction maintained in this chamber by the fan 26. The partition wall I4 is so positioned as to provide an exhaust chamber 28 of about 25%, greater area than the. ininlet chamber 22 but it will be understood that the respective volumes of the chambers may be varied for different uses to which the apparatus may be put. r

If the unit 3! is connected with adjacent units l3a and l3b, as shown more clearly in Fig. 2, the units li-la and [3b are reversed in position so that the exhaust end of easing, [3a. isadjacent the exhaust end of easing l3 while the inlet end of casing [3b is adjacent the inlet end of casing is whereby the exhaust fan 26 is able to withdraw gaseous material through the conduits 27 and 24 and the blower 30 is able to discharge air or other gas through both conduits 28 and 32. I p e The air which is introduced by blower 30 into casing I3 is discharged downwardly through the narrow port 16 and there broken into separate streams by the louvers ll. The curtain of air or other gas thus formed by the parallel streams extends downwardly about the source of contaminant so asv to shield the room against the contaminant while, at the same time, the turning of the curtainnear its bottom provides the bulk of the carrier fluid which is necessary to act as the conveying means for the removal of the contaminant, etc. The shape of the curtain may be varied, if desired, by changing the shape or contour of the discharge port [6.

In the illustration given, I provide a housing structure in which the entire interior of the housing is effectively" employed for providing the chambers desired-"while at the same time a cold air drawn in from the exterior of the building.

While in the foregoing specification, I have set out certain structures in considerable detail for the purpose of illustrating one embodiment of the invention, it will be understood that such details of structure may be varied widely by those skilled; in the art without departing from the spirit of my invention.

I claim:

1. In ventilating exhaust apparatus, an elon gated casing providing a chamber open at its bottom, a partition wall dividing the, bottom portion of the chamber into a longitudinally extending narrow discharge passage and a 1ongitudinally extending wide inlet passage, said partition wall extending upwardly from the bottom to the top of the casing in an oblique plane and at an angle varying throughoutthe length of the partition wall to provide chambers having enlarged portions at opposite ends of the casing, and an exhaust conduit communicating with the enlarged end of one chamber and an inlet conduit communicating with the enlarged end of the other chamber.

2. In ventilating exhaust apparatus, an elongated casing providing a chamber open at its bottom, a partition wall dividing the bottom portion of the chamber into a longitudinally extending narrow discharge passage and a longitudinally extending wide exhaust passage, said partition wall extending upwardly in an oblique plane and at an angle varying through out its length toward the top and opposite side of the casing, providing an enlarged upper por tion in said discharge passage at one end of the casing and an enlarged upper portion in said exhaust passage at the other end of the casing, an exhaust conduit communicating with said enlarged portion of the exhaust passage, anda fluid discharge conduit communicating with the enlarged upper portion of the discharge passage. I r

3. In ventilating exhaust apparatus, a gen-,- erally rectangular casing open at its lower end, a partition wall dividing the lower end of the chamber into a relatively narrow discharge passage extending longitudinally of the casing and a relatively wide exhaust passage extending longitudinally of the casing, said partition wall extending obliquely in an upward direction and at an angle varying throughout the length of the partition wall toward the opposite corner in the casing and dividing the interior of the casing into an exhaust chamber and a discharge chamber, means for discharging air under pressure into said discharge chamber and means for exhausting air from said exhaust chamber, said exhaust chamber being in open communication with said exhaust passage and said discharge chamber being in open com munication with said discharge passage.

4. In ventilating exhaust apparatus, an elon gated casing providing a chamber open at its bottom, a partition wall dividing the bottom portion of the chamber into a longitudinally extending narrow discharge passage and a longitudinally extending wide exhaust passage, said partition wall extending upwardly in an oblique plane and at an angle varying throughout its length toward the top of the casing, louvers extending longitudinally of said discharge passage, louvers extending transversely of said exhaust passage, an exhaust conduit communicating with said portion of the chamber leading to said exhaust passage, and a discharge conduit communicating with the portion of the chamber leading to said discharge passage.

5. In ventilating exhaust apparatus, a generally rectangular casing open at its bottom, a partition wall extending longitudinally of the bottom and adjacent one side thereof to divide the bottom into a relatively narrow discharge passage extending longitudinally of the :bottom and a relatively wide exhaust passage extending longitudinally of the bottom, said wall extending upwardly from one corner portion of the bottom in an oblique plane to the opposite corner portion of the casing top and at an angle varying throughout its length toward the top of the casing-providing at each end of the casing a narrow chamber and an enlarged chamber, and conduits communicating with the enlarged chamber at each end of the casing.

6. In ventilating exhaust apparatus, a generally rectangular casing providing a chamber open at its bottom, a partition wall dividing the bottom into a relatively narrow dischargepassage extending longitudinally of the bottom, and a relatively wide exhaust passage extending longitudinally of the bottom, said partition wall extending upwardly in an oblique plane and at an angle varying throughout its length to divide the casing into an exhaust chamber communicating with said exhaust passage and a discharge chamber communicating with said discharge passage, 1011- vers extending longitudinally of said discharge passage, louvers extending in spaced relation across said exhaust passage, conduits communicating with each of said chambers, and fans carried by said conduits.

7. In ventilating exhaust appa atus, a generally rectangular casing, a flat partition wall dividing the bottom portion of the casing into a relatively narrow discharge passage and a relatively wide exhaust passage extending longitudinally of the bottom, said partition wall being inclined obliquely upwardly from one corner portion of the bottom and at an angle Varying throughout itslength toward an opposite corner portion of the casing top the top of the casing to form an exhaust chamber communicating with said exhaust passage" and a discharge chamber communicating with said discharge passage, louvers extending longitudinally of said discharge passage, spaced members extending transversely I of said exhaust passage and providing Venturilike passages in said exhaust passage, an exhaust conduit communicating with said exhaust cham ber, and a blower conduit communicating with said discharge chamber.

CLAUDE B. SCHNEIBLE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,577,509 Witham, Jr Mar. 23, 1926 2,129,634 Albright Sept. 13, 1938 2,277,271 Schneible Mar. 24, 1942 2,350,735 Egge June 6, 1944 2,440,692 Kruse May 4, 1948 

